package com.mmall.service.impl;

import com.google.common.collect.Lists;
import com.mmall.service.IFileService;
import com.mmall.util.FTPUtil;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.UUID;
@Service
@Slf4j
public class FileServiceImpl implements IFileService {

    public String upload(MultipartFile file,String path){
        String fileName = file.getOriginalFilename();
        //扩展名
        String fileExtensionName = fileName.substring(fileName.lastIndexOf(".")+1);
        String uploadFileName = UUID.randomUUID().toString()+"."+fileExtensionName;
       log.info("开始上传文件，上传的文件名是={}，上传的路径是={}，新文件名={}",fileName,path,uploadFileName);

       File fileDir = new File(path);
       if (!fileDir.exists()){
           fileDir.setWritable(true);
           fileDir.mkdirs();
       }
       File targetFile = new File(path,uploadFileName);
        try {
            //文件已经上传成功
            file.transferTo(targetFile);
            //将targetFile上传到FTP文件服务器
            FTPUtil.uploadFile(Lists.newArrayList(targetFile));
            //上传完之后，删除upload下面的文件
            targetFile.delete();
        } catch (IOException e) {
           log.error("上传文件异常",e);
           return null;
        }
        return targetFile.getName();
    }


}
